What is the speed of the stone at impact
A hoodlum throws a stone vertically downward with an initial speed of 12.0 m/s from the roof of a building, 30.0 m above rge ground. How long does it take the the stone to reach the ground? What is the speed of the stone at impact?
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Assume a typical hummingbird has a lifespan of 4.0 years and an average heart rate of 1300 beats per minute. (a) Calculate the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Use 365.24 days per year
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The roof of a building, 30.0 m above rge ground. How long does it take the the stone to reach the ground? What is the speed of the stone at impact?
To create your final project, you will choose two of the topics below that address current issues in education. Describe each issue and explain why these issues pose a problem or concern.
A 925 N crate is being pulled across a level floor by a force F of 325 N at an angle of 25° above the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the acceleration of the crate.
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A 2.8 {rm kg} block of wood sits on a table. A 3.0 {rm g} bullet, fired horizontally at a speed of 460 {rm m/s}, goes completely through the block, emerging at a speed of 180 {rm m/s}. What is the speed of the block immediately after the bullet ex
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